BAL adhesive

[tileform]

Doing a bathroom floor 19sqm with 305 x 305 ceramic tiles
I've overlaid it with 12mm ply and was gonna use BAL rapid set flexi which i've already bought

Just checked powerspec and it states to use fastflex???

Can i not use the rapid set flexi?

 

[bal tas 2]

Hi tileform
BAL would recomend that you use BAL FASTFLEX for a 12mm ply overlay,
the overlay would need to be a minimum of 15mm thick (WBP or Marine Grade) to use BAL RAPIDSET FLEXIBLE

 

[tileform]

Much appreciated mate

Just hope there's not much difference in price!

 

[Gazzer]

Yes Fast Flex is a lot more.

 

[wayne]

if the subfloor is solid and the ply is screwed every 6 inch single part flex should be fine to use. thats what i normally fix tiles with

 

[Benny]

Check BS standards for overlayes when using single part adhesives its 15mm unless using tile backerboard then you can use 10mm:yes:

 

[grumpygrouter]

Check BS standards for overlayes when using single part adhesives its 15mm unless using tile backerboard then you can use 10mm:yes:

Strange that, as backer board doesn't really add any strength to the floor, just gives a better surface for the addy to grab on to and is more stable heat and moisture wise.

 

[wayne]

i know what bs is its just not practical at times. only my opinion though but nearly every job i have seen on bathroom floors the ply has been 12mm max. never seen one done with 15mm

 

[grumpygrouter]

Don't ever recall seeing 15mm ply personally, only ever 4, 6, 9, 12, 18, 22 and 25.
Again, this brings up the discussion of the reason for boarding out a floor. Is it to strengthen a floor or to just give a nice surface to tile onto?

BAL powerspec gives information on materials "by the book" to cover their own warranties. In the real world, many chipboard floors are absolutely solid and require no further strengthening. In this case 6mm backerboard is fine to protect the chipboard from moisture induced movement. Appropriate adhesives do a fine job if the situation is suitable and not require any boarding out. My prefered straight to timber/board is Ardex 7001. It is considerably cheaper than Fast Flex.

All just my opinion obviously.

 

[tileform]

Grumpy,

Whats your approximate price for Ardex 7001? I can get this also
Whats the coverage on it?

And also, as long as my floorboards and ply are solid and fixed well - i could get away with using rapid set flexi? Altho the powers that be do not recommend.

 

[grumpygrouter]

Tileform, I (used) nto be able to get 7001 for about £26. I did a 7m2 entrance hall on my last job with 1 bag!

The beauty of it is that you mix it quite thin - it will run off the trowel - and assuming your floor is flat you can use a 6mm trowel for tiles up to 300x300. Because it is thin, you get 100% coverage much more easily.

Brilliant stuff IMO.

Prime with Ardex P51 (neat) first.

 

[tileform]

The postman has just delivered a copy of their tiling solutions brochure - brilliant manual!

I'm gonna price my next job on ardex and see what its like

Looking at this tiling solutions, using 7001 i can tile straight onto floorboards?

 

[grumpygrouter]

Correct, as long as they are prepped properly and the floor is solid.

 

[tileform]

Much appreciated

Whats your approximate price for 5001 or X7G plus?

 

[grumpygrouter]

Much appreciated

Whats your approximate price for 5001 or X7G plus?

Never bought it up here mate so couldn't tell you. My supplier for ardex is no longer taking it in.:furious3:

Last time I bought X7G plus (i don't particularly like it , by the way) it was £13.78 plus vat from CTD. I have never used 5001.